
public class  OutterClass{

    class InnerClass{
        private int x=0;
        public void test(){
            OutterClass.this.test();
            System.out.println("InnerClass::test()");
        }
    };
    public void test(){
        System.out.println("OutterClass::test()");
    }
    public static void main(String[] args) {
        System.out.println("Hello world!");
    }

} 